Doing so on your own (if that's what you did) isn't something you ought to take lightly.
It was under the same doctors instruction that I stop them dead, as he was no longer noticing any differences and didn't want to up the dosage when I was at an age where I needed to come off them. Allegedly, he'd noticed it for some time and saw fit to kill it - with the instruction that I take it if I feel I absolutely should. But you're right, I detested them so I just left it. Frankly, I trust the mans judgment, as he's been my family Doctor for roughly 45 years now and never steered me wrong.
And anywho, I've never taken enough of the stuff (or regularly enough) for my body to form a dependence - his words. He made it very clear to me I wasn't dependent on them. This is baring in mind that dependence is part chemistry and part addictive-personality, and I don't have the latter. (that doesn't mean to say I can't get addicted, it means it takes me a damn sight longer than most).
[Edit] For what it's worth, he hasn't ruled out the possibility that the Dexamphetamine was masking an otherwise unnoticed condition - the working assumption covers more than just the idea of stopping them as its literal.
This post has been edited by pryogene: 11 June 2012 - 01:43 PM